IFR COM-120C, Operation Manual

Page: 67 / 326

3-22
SECTION 3
COMPOSITE
3-3-11 SPECTRUM ANALYZER SCREEN
T h e I n d e p e n d e n t S p e c t r u m A n a l y z e r O p e r a t i o n S c r e e n o p e r a t e s i n d e p e n d e n t o f t h e T e s t
M o d e s a n d i s a c c e s s e d b y p r e s s i n g t h e A N L Y Z I n s t r u m e n t s K e y .
T h e S p e c t r u m A n a l y z e r O p e r a t i o n S c r e e n d i s p l a y s i n t h e c o n f i g u r a t i o n l a s t u s e d .
1 . L o g a r i t h m i c F u n c t i o n
D i s p l a y s L o g a r i t h m i c
F u n c t i o n f o r r e f e r e n c i n g
V e r t i c a l S c a l e ( 1 ) .
S e l e c t i o n s i n c l u d e d B m ,
d B µ V , d B m V , d B V , d B µ W
a n d d B W .
2 . S c a n W i d t h
D ispl ays sele ct ed Scan
W i d t h p e r d i v i s i o n .
3 . Z e r o S c a n S w e e p
D i s p l a y s s e l e c t e d S w e e p p e r
d i v i s i o n .
4 . M a r ke r
M a r ke r c o n t r o l l e d u s i n g M a r ke r P o s i t i o n ( 8 ) . M o v a b l e t h r o u g h e x t e n t o f v i s i b l e
s c r e e n .
5 . C e n t e r F r e q u e n c y
D i s p l a y s C e n t e r F r e q u e n c y . S e l e c t i o n s r a n g e f r o m 0 . 0 0 0 0 t o 1 0 0 0 . 0 0 0 0 M H z .
F o r S c a n W i d t h s 3 2 M H z / d i v , s t a r t a n d s t o p f r e q u e n c i e s m u s t b e a b o v e 0 M H z a n d
b e l o w 1 0 0 0 M H z .
6 . R e s o l u t i o n B a n d w i d t h
D i s p l a y s e d i t a b l e R e s o l u t i o n B a n d w i d t h f i e l d f o r s e l e c t e d S c a n W i d t h ( 2 ) .
7 . U N C AL
D i sp l a ys U N C A L f o r se t t i n g s t h a t ca u se a n u n ca l i b r a t e d co n d i t i o n .
8 . M a r ke r P o s i t i o n
D i s p l a y s M a r ke r P o s i t i o n i f M a r ke r ( 4 ) i s a c t i v e o r O F F i f i n a c t i v e .
9 . M a r ke r L e v e l
D i s p l a y s c u r r e n t M a r ke r L e v e l i f M a r ke r ( 4 ) i s a c t i v e . D i s p l a y s B l a n k i f M a r ke r ( 4 )
is O F F .
00607047
-30
-40
-50
-60
-70
-80
-90
-100
-110
dBm 5 kHz 105.0000 MHz RBW 3 kHz
Mode
LIVE
Scale Marker
104.9964 10 dB
Ref -52.64
0 dB
Atten RF Input
ANT
OFF
Track Gen
1 2
5
6
8
9
10 11 12 13 14 15
16
4
1 ms/div
3
UNCAL
7
S p e c t r u m A n a l y z e r S c r e e n